It's legendary UK female grappler Miss Mitzi Mueller.
Or Miss Mitzi Muller...or Miss Mitzie Muller...I see it spelled a lot of different ways.
She's so popular I even wrote up a Hub about her.
|Miss Mitzi Mueller - UK Female Wrestling|
BTW...I ran across the picture above first at a blog called Assorted Thoughts From An Unsorted Mind.
The blog has a lot of stuff there and a lot of vintage UK and Japan female wrestling pics so you may want to go check it out.
|Mitzi Mueller and Nicky Monroe|
|Mitzi Mueller and Rusty Blair wrestling|